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Finding the Fourth Proportional to 339,210.90, 508,890.15 and 102,547.40

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Solution

The fourth proportional to 339,210.90, 508,890.15 and 102,547.40 is: 153,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,210.90 : 508,890.15 = 102,547.40 : x
  2. Step 2: Convert to fraction form
    339,210.90/508,890.15 = 102,547.40/x
  3. Step 3: Cross multiply
    339,210.90x = 508,890.15 × 102,547.40
  4. Step 4: Simplify right side
    339,210.90x = 52,185,359,223.66
  5. Step 5: Solve for x
    x = 52,185,359,223.66/339,210.90
  6. Step 6: Final answer
    x = 153,843.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.